1996 Pontiac Sunfire Owner's Manual - Page 251

Brakes Brake Fluid When using concentrated washer fluid, follow the manufacturer's instructions for adding water. Don't mix water with ready-to-use washer fluid. Water can cause the solution freeze to and damage your washer fluid tank and other parts of the washer system.Also, water doesn't clean as weil as washer fluid. Fill your washer fluid tank only full 3/4 when it's very cold. This allows for expansion, which could damage the tank if it is completely full. Don't use radiator antifreeze in your windshield washer. It can damage your washer system and paint. Your brake master cylinder reservoir is here.It is filled with DOT-3 brake fluid. 0 There areonly two reasons why the brakefluid level in the reservoir might go down. The first is that the brake fluid goes down to an acceptable level during normal hake lining wear. When newlinings are put in, the fluid level goes back up. The other reason is that fluid is leaking out of the brake system. If it is, you should have your brake system fixed, since a leak means that sooner or later your brakes won't work well, or won't work at all.